Housing for a magnetic contact switch



FIG. 1 is a pictorial view of a housing for a magnetic contact switch embodying our new design as seen from the upper left front;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left end elevational view thereof;

FIG. 6 is a right end elevational view thereof; and

FIG. 7 is a back elevational view thereof. 

The ornamental design for a housing for a magnetic contact switch, as shown. 